Self-propelled plow.



0. WAIT.

SELF PROPELLED PLOW.

APPLICATION FILED FBB.23, 1909. EENEWBD APR. 19, 1910.

Patented 1\ov.8,1910,v

2 SHEETS-SHEET 1.

0. WAIT.

'SELF PROPELLED PLOW.

APPLICATION FILED IEB.23, 1909. RENEWED APB.. 19, 1910.

Patented Nov.8, 1910.

2 SHEETS-SHEET 2.

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Application led. February 23, 1909,'Sdrila1No. 479,368. Renewed April 19, 1910.- Serial llo. 556,897.

To all whom 'it may concern;

which the -followin is a specification.

This invention re propelled plows.

Amon tion, an important obJect is to devise an auL tomoble low adapted to be used on all sorts 1 of groun .whether rolling, hilly or level,

which may be steered with great facility, and which shall have various novel and useful features as hereinafter pointed out.

' The invention consists of the parts and p the construction and combination of parts,

or their equivalents, as hereinafter 'more fully described and claimed, having referfeo ence to the aceompanying drawings, in whichi Figure 1 is a plan View of the plow, partially broken away, the hand wheels, 27,.of the up er right and left hand gangs being omitted). Fig. 2 isi a side elevation, some parts being in section. Fig. 3 is a sectional detail showing the screw bushing and disk. A is a sultable frame, u on which is mounted amotor 2 of any pre erable design, havino' a shaft 3 fromwhich power is transmitte by means to be hereinafter described,

` to t11e,forward rotary diggers 4, and to the disk-plows 5 at the rear of the frame A. Y The diggers 4 consist ofV a hub 6, projecting from which are a plurality of blades or vspades 7, and the plows 5 are keyed in sets upon horizontal shafts 8, j ournaled in hangers 9, and each shaft is provided with a worm-wheel 10 engageable with a' vertically disposed worm shaft 11 also journaled in the hanger 9.

The hangers are bolted at 12 to tubular bushings 13,'turnable in bearings 14 secured upon the longitudinal side vmembers of the frame A.

The rotary diggers 4 notl only serve to help break up the soil by use of the spades 7, but' also have the double functions. of bein' steering and traction wheels, each forward shaft-hanger 9 being turnable in unison with its respective bushing. 13, by means of a steering-wheel 15 having suitable connections, as cable 16, with a pinion 17 which meshes with rack-segments 18 fastened to the several purposes of this invent 'the upper end yofthe bushings 13, and by Y Be it known that I, G'BLIN AVVMT, citizen of the United States, residing at San Jose, i

in the county of Santa Clara and State of 'l' California, have invented new and useful` Improvements in Self-Propelled Plows, of-

swinging the steering shafts 8 in unison andparallelism.

Upon the rear plow-shafts 8 I preferably e secure disks 5, each shaft being rotated ates to agricultural imi plements, and pertains particularly to selfworms 20 on shaft 21, rockable by a rack 22 and Worm 23 when the lhand-wheel 24 is turned.V By this means the two plow-shafts 8 may be set simultaneously at the desired angle relative to the frame A.

Theseveral vertical worm-shafts 11 arey each driven by similar mechanism which, as

Patented Nov..sf, 1910. y

shown, comprises a friction-disk 25, splined A on shaft 11, and adapted for vertical reciprocation, by means of a hollow screw 26 passin through a hand-wheel 27, across the face o a driven, vertical late 28, slidably carried by shaft 29, two of naled upon frame A, and connected b sprockets and chains 29Il to the engine sha t 3, and each being adapted to carry a pair of the disk-plates 28. I

In order to advance'or retract the individunlV driving disks 28, relative to its respective friction-disk 25, its hub 30 is incased in a bushing 31 havingexterior threads 32, turnable in the box 33, mounted upon the whichare jourbraces '34 O'f the Vframev A-,and a' lever-arm '35, secured to the bushing 31, is connected by link 36 to a suitable lever 37 which the 'operatore manipulates to advance the bush-` ing 31, and force the disk 28 into driving engagement with 'the periphery of the horizontal disk 25, thereby driving the worm 11 andworm-wheel 10.

There being one operating lever 37 for each disk 28, the operator may couple or uncouple each driving friction set lat will,

and the speed and direction of rotation of the disk 25 may be altered as desired by turning the hand-wheel 27; this being etfective to raise orilower the disk 25with the well known result` of reducing the speed as the center of the driver 28 is reached, andl rotation reversed when it is passed. It is therefore obvious that I have prpvided .a plow which is not-only self-propelled, but

has many advantages, in that it is perfe'ctly adjustable to meet various4 conditions ofsoil and surface; that the spade-carrying members have numerous functions, to Wit:

as steering-wheels; as traction-wheels, and as disintegrators; it is noticeable too that pivoted to the forward turnable bushings 13, as at as. i

Having thus described my invention, what I claim and desire to secure byLetters 'Patent .isv l. The combination in a plow, of a plurality of independent, vertlcal shafts, disl integrating members and connections between the saine andsaid shafts, a lframe sup portinga motor, andY` means whereby said shafts may be ,separatelyv coupled to and. t driven by said motor, said means including rying friction disks,fdrive n friction disks splined on saidshafts, and means for movshafts whereby the latter maybe adjusted,a y

motor carried upon the frame, countershafts connected to sald motor, and means by which the steering-shafts and the shafts carrying the disintegrating members may be independently driven at various speeds by said countershafts, said last-named means including friction disks driven fromthe motor, vertical shafts, disks on thevertical shafts engaged bythe first named disks, and means for vertically moving vthe'sccond-named disks relatively to the iirst-named disks.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

' ORLIAT WAIT. Witnesses:

VCHARLES A. PENriELn,

G. A. XVHrr-E'HURST. 

